The US, under James Polk, offered to buy California from Mexico before the Mexican War.
It wasn't purchased, but won over a war with Mexico.
Please see related questions for further detail.
Pres Polk
President Polk offered to buy New Mexico and California from Mexico.
James k Polk who was the 11th president of the united states from 1845 to 1849. in 1845 he offered up to 30 million pounds for California and New Mexico.
It is as if today China offered to forgive the US debt in exchange of the whole states of California, Nevada, Utah, Arizona, New Mexico and Texas, as well as parts of Wyoming, Colorado, Oklahoma and Kansas. What do you think the reaction would be? Such proposal was quickly rejected; Mexicans simply didn't want to sell.
California and the Southwest.
June 1846
president james polk
Baja California is a federal state that is part of Mexico. It doesn't have a president per se, but a governor. Current Baja California governor is Jose Guadalupe Osuna Millan (term: 2007-2013).
to take it fro mexico
James Polk.
Mexico was offered a deal by Germany in which they would be richly rewarded for siding with them in the first World War. It US Forces were tied down in North America, it might have given them an edge, or at least a better negotiating position. Mexico rejected the offer. For further details see the Zimmermann Telegram.
the new president Jame K. Polk promised America all of Texas and it then became a union in 1845. In 1845 President Polk sent an official to Mexico to settle the border dispute between Texas and Mexico at the Rio Grande. He also offered to buy the Mexican territories of California and New Mexico for $30 million . They refused the offer very angrily. Then President Polk ordered Zachary Taylor and his troops to march to and across the Rio Grande . They made it across and captured many Mexican cities.
Abraham Lincoln.